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DCF＋：An Enhancement for Reliable Transport Protocol over WLAN

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摘要 Distributed Coordination Function (DCF) is the basis of the IEEE 802.11 WLANMAC protocols. This paper proposes a scheme named DCF+, which can be regarded as an optionto DCF, to enhance the performance of reliable transport protocol over WLAN. To analyze theperformance of DCF and DCF+, this paper also introduces an analytical model to compute thesaturated throughput performance of WLAN. Compared with other models, this model is moreaccurate, which is verified by elaborate simulations. Moreover, DCF+ is shown to be able toimprove the performance of TCP over WLAN by both modeling and simulations.
作者 邬海涛 程时端
机构地区 NationalKeyLab.ofSwitchingTechnologyandTelecommunicationNetworks
出处 《Journal of Computer Science & Technology》 SCIE EI CSCD 2003年第2期201-209,共9页 计算机科学技术学报（英文版）
基金 高等学校博士学科点专项科研项目，NOKIA-BUPT Advanced TCP/IP Network Project
分类号 TN925.93 [电子电信—通信与信息系统]
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参考文献10

  • 1IEEE standard for wireless LAN medium access control (MAC) and physical layer (PHY) specifications. ISO/IEC 8802-11: 1999(E), Aug., 1999.
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  • 5Wu Haitao, Peng Yong, Long Keping, Cheng Shiduan, Ma Jian. Performance of reliable transport protocol over IEEE 802.11 wireless LAN: Analysis and enhancement. IEEE Conference on Computer Communications (INFOCOM), New York, 2002, pp.599-607.
  • 6Wu Haitao, Cheng Shiduan, Peng Yong, Long Keping. IEEE 802.11 distributed coordination function: Enhancement and analysis. Journal of Computer Science and Technology, to appear.
  • 7Gerla M, Bagrodia R, Zhang L, Tan K, Wang L. TCP over wireless multi-hop protocols: Simulation and experiments. IEEE International Conference on Communications (ICC), Vancouer, Canada, 1999, pp.1089-1094.
  • 8Xylomenos G, Polyzos G C. Link layer support for quality of service on wireless Internet links. IEEE Personal Comm., Oct., 1999, 6(5): 52-60.
  • 9Xu S, Saadawi T. Does the IEEE 802.11 MAC protocol work well in multihop wireless Ad hoc network. IEEE Commun. Mag., June, 2001, 39(6): 130-137.
  • 10Jain R. The Art of Computer Systems Performance Analysis. Johla Wiley & Sons, 1991.
Journal of Computer Science & Technology
2003年 第2期

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